see /sys/block/md[0,1,2]/md/sync_force_parallel On Thu, May 17, 2012 at 9:50 AM, Roberto Spadim <roberto@xxxxxxxxxxxxx> wrote: > hi guys, i was running a resync in a non-normal hardware instalation > > it's a server with 4 disks, they are in a raid hardware controller (perci > from dell) > disk 1-2 are raid1 and linux know it about /dev/sda > disk 3-4 are raid1 and linux know it about /dev/sdb > > well i add more 4 disks > disk 5-6 raid1 with /dev/sdc > disk 7-8 raid1 with /dev/sdd > > nice... > well /dev/sda and /dev/sdb have same partitions (/dev/sda1, 2 3 4) and have > some md devices in this partitions.. > /dev/md0 = /dev/sda1 /dev/sdb1 > /dev/md1 = /dev/sda2 /dev/sdb2 > /dev/md2 = /dev/sda3 /dev/sdb3 > all raid 1 too > > i create same partitions on /dev/sdc, /dev/sdd > and add they to md raid1 > /dev/md0 = /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1 > /dev/md1 = /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2 > /dev/md2 = /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3 > > > nice.. > mdadm start resync... > the point is... > /dev/sda1 start copies to /dev/sdc1 and /dev/sdd1, i checked this with > iostat -d 1 -k, and server is idle, only mdadm and raid is running, > /dev/sda1 have reads and /dev/sdc1 and /dev/sdd1 have writes > nice.. > > the problem is... > /dev/sdc2 and /dev/sdd2 didn't start sync while /dev/md0 is running, since > they share the same devices (/dev/md0 => /dev/sda1, /dev/md1 => /dev/sda2) > > could i force a sync in /dev/md1?? > since /dev/sda is a raid1 hardware, it can handle two disks without > performace problems... > it have 2 heads, in others words the mdadm disk balance isn't perfect here > to this solution, but works... the problem is sync not running, if i could > force it every things could be allright > > i must check kernel version, it's about 2.6.3x, 1 year old +- > > well that's it, any ideas? > > > *** > sorry if i send two emails, the email was configured to HTML/RICH TEXT text > > > -- > Roberto Spadim > Spadim Technology / SPAEmpresarial > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
